Sewing-machine treadle



(No Model.) 2 Sheets-Sheet 1.

P. DIEHL & T. KRAEMER. SEWING MACHINE TRBADLB.

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(No Model.)

-2 sheqts-sleet 2.. P. DIBHL E T; KRABMER. l SEWING MACHINE TRBADLB.

No. 568,717. Patented sept. 29, 1896.

/-ZQMMM @gigi/W 'NEK PHILIP DIEHL AND THOMAS KRAEMER, OF ELIZABETH, NEWJERSEY PATENT rricn.

ASSIGNORS TO THE SINGER MANUFAOTURINGVOOMPANY, OF NEV JERSEY.

SEWING-MACHINE TREADLE.

SPECIFICATION forming part of Letters Patent No. 568,717, datedSeptember 29, 1896.

Application filed April 28, 1896.

To @ZZ whom it may concern,.-

Beit known that we, PHILIP DIEHL and THOMAS KRAEMER, citizens of theUnited States, residing at Elizabeth, in the county of Union and Stateof New Jersey, have invented certain new and useful Improvements inSewing-Machine Treadles, of which the following is a specification,reference being had therein to the accompanying drawings.

Our invention has for its object to provide a treadle mechanism forsewingmachines and the like by means of which an operator is enabled todrive a machine at a high speed and with a minimum expenditure of power,and in which all of the treadle mechanism and also the drivencrank-shaft will be supported by the brace which connects the legs orside frames of the stand or table. To this end we provide the said bracewith suitable supports or lugs on which a crank-shaft hav ing two cranksanda pulley or driving-wheel is mounted, preferably by center screws,and to the lower part of the said brace we pivot two treadle-levers,which are connected by two pitmen with the two cranks of thedriving-shaft. The treadle-levers are preferably provided with pivotedor rocking foot-pieces having convex and corrugated upper surfaces.

In the accompanying drawings, Figure lis a front elevation of asewing-machine stand embodying our invention. Fig. 2 is a plan view ofthe same with the table omitted. Fig. 3 is a detail section on line 3 3of Fig 2.

A denotes the legs or side frames of the stand, supporting the table B,on which the sewing-machine or other similar machine to be driven ismounted. C is the cross-brace, bolted at its upper and lower ends to thesaid legs or side frames and serving to hold the latter strongly andaccurately in place. The brace O is provided at its rear side withrearwardly-projecting arms or lugs c, by which is supported, preferablyby center screws c", the double crank-shaft carrying the driving wheelor pulley cl.

E denotes the twin treadles or treadle-levers, pivotally supported inthe lower part of the brace C, said levers, as herein shown, being hungon center screws c5 and on a double Serial No. 589,451. (No model.)

cone-pointed pin c2, held in a lug c3 on the lower cross-rod c4 of thebrace, and being preferably provided at their forward or operating endswith pivoted foot-pieces e, having corrugated and convex upper surfaces.The

rear arms of the treadle-levers are connected will always maintain theirrelative positions unaffected by any springing or warping of the tableB, which might disturb such relative arrangement were the doubletreadles or the crank-shaft mounted in the legs or side frames of thestand, or on rods or parts connected therewith.

It will also be seen that the arms or lugs c', projectingrearwardly fromthe brace O about midway of the height thereof, afford means forsupporting the double crankshaft clear of the brace, so that there willbe room for said shaft to work behind said brace, and without requiringsaid shaft to be lowered to a point which would be objectionable.

Having thus described our invention, we claim and desire to secure byLetters Patentl. The combinationwith the legs or side frames A, and thebrace O connecting the same and provided with the rearwardly-projectingarms or lugs c, of the crankshaft supported by said arms or lugs behindand clear of said brace and having the wheel or pulley d and two cranksd, the two treadle-levers E, mounted in the lower part of said brace,and the pitmen connecting said levers with said cranks.

2. The combination with the legs or side frames A, and the brace Oconnecting the same and provided with the rearwardly-proj ecting arms orlugs c, of the crank-shaft supported by said arms or lugs behind andclear of said brace and having the wheel or pulley cl and two cranks d',the two treadle-levers E, mounted in the lower part of said brace, and

the pitlnen connecting said levers With said cranks,said treadle-lcvershavin g the pivoted foot-pieces e.

3. The combination with the legs or side frames A, and the brace Cconnecting the same and provided With the rearWardly-pro jectng` arms orlugs c, of the crank-shaftsupported by said arms or lugs behind andclear of said brace and having the Wheel or pulley d and two cranks d',the two treadle-levers E mounted, in the lower part of said brace, and

the pitmen connecting said levers With said cranks, said tread1e-levershaving the pivoted foot-pieces e having convex and corrugated orroughened upper surfaces.

In testimony whereof We affix our signatures in presence of twoWitnesses.

PHILIP DIEIIL.

THOMAS KRAEMER.

lVitnesses:

HENRY CALVER, JOSEPH F. J AQUITH.

